* {
  box-sizing: border-box;
}
.d-flex {
  display: flex;
}
.align-center {
  align-items: center;
}
.f-s-16 {
  font-size: 16px;
}
.bg-white {
  background-color: #fff;
}

.w-1200 {
  width: 1200px;
}
.mauto {
  margin: 0 auto;
}
.pointer{
  cursor: pointer;
}